baber/WOPTO huggingface dataset:
Patent GB-407383-A (GB)
Title: Improvements relating to photo-electric cells
IPC: H01L31/06
Filed: 1932-08-17
Abstract: 407,383. Light - sensitive cells. WILLIAMS, A. L., and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Aug. 17, 1932, No. 23086. [Class 40 (iii).] A cell of the dry-surface-contact type generates a current whose direction depends on the wave-length of the incident light. In the example a layer 2 of cuprous oxide is formed on a disc 1 of copper, and an annulus 3 of gold is sputtered on to its periphery, so that the " second-class conductor " 2 lies between two good conductors 1, 3, which form the electrodes. Red light fails to pass through the gold 3 to the interface 5, but passes through the cuprous oxide 2 to the interface 4 ; while green light passes through the gold 3 to the interface 5, but fails to reach the interface 4. Thus red light acts on one interface and green light on the other, and the direction of current-flow is determined accordingly.
Patent GB-338329-A (GB)
Title: Process for the catalytic manufacture of synthetic acetic acid
IPC: C07C51/10
Filed: 1929-07-27
Abstract: 338,329. Soc. Franþaise de Catalyse GÚnÚralisÚe. Jan. 26, 1929, [Convention date]. Acetic acid.-Catalysts for the production of acetic acid from carbon monoxide and hydrogen consist of one or more of the phosphates, borates, or silicates of nickel, cobalt, chromium, iron and copper, with or without any other metals, oxides, carbonates, or other salts. The reaction is effected at 500-550‹ C. at 450-600 atmospheres pressure.
Patent GB-751918-A (GB)
Title: Improvements in spring applied brakes, particularly for electrically operated trucks
Inventor: JR RUSSELL HASTINGS
IPC: B60T1/06
Filed: 1954-08-10
Abstract: 751,918. Truck brakes. LEWIS-SHEPARD CO. Aug. 10, 1954, No. 23165/54. Class 103 (1). A brake for a truck, especially of the kind used in factories and warehouses, for handling materials is mounted to the left of the electric driving motor, as shown at 16 in Fig. 1, and comprises shoes 50 and 52 on pivoted levers 42 and 44, the shoes being normally held applied to a drum 34 by a spring 62 between their lower ends. The brake is released, by a rotary solenoid 72 acting through a cam 78, the surface of which bears against angled rollers 90 and 92 adjustably secured to the levers 42 and 44. Axial movement of the solenoid hub 83 and armature plate 82 to the left is caused through the interaction of balls 88 with sloping grooves 84, 86 to bring about a substantially constant torque on the cam 78. Manual release mechanism comprises a lever 160 which when moved to the right hand dotted position, shown in Fig. 4, rotates a cam 158 to spread apart the ends of levers 42 and 44. A bar 142 projecting from the cam 78 automatically causes movement of the manual mechanism back to " ON " or normal position, when the rotary solenoid is again energized.
Patent GB-360434-A (GB)
Title: Improvements in electrical heating units
IPC: H05B3/06
Filed: 1930-08-01
Abstract: 360,434. Resistances. VARVEL, S. LE F., 125, High Holborn, London, and MEADE, W. L., Rhenold's Close, Steeple Claydon, Bletchley, Buckinghamshire. Aug. 1, 1930, Nos. 23243 and 30124. [Class 37.] Within an outer sleeve e of metal or other heatconducting material is silica, mica, or other internal insulating tube f making good thermal contact with the sleeve e. Formed on opposite sides of the tube f are reversely inclined slots g to permit direct radiation of heat from the interior of the tube f to the sleeve e. Within the tube f is a rod of resistance material, or a helically coiled resistance wire h, the insulated end portions h<1> of which pass through metal end caps j and are connected to terminal pins k. The caps j may be insulated from the sleeve e and form terminals. Two such resistance units may engage sockets on a base arranged so that the units are parallel, the sockets at one end being connected together, so that the two resistance units are in series.
Patent GB-1003444-A (GB)
Title: Improvements relating to the measurement of electrical resistance
Inventor: HAYDEN GEORGE THOMAS
IPC: G01R27/02
Filed: 1963-06-11
Abstract: 1,003,444. Resistance measurement. EVERSHED & VIGNOLES Ltd. June 25, 1964 [June 11, 1963], No.23246/63. Heading G1U. An instrument for measuring the line/earth or line/neutral loop impedance in a domestic wiring system, in order to determine what fault current might flow, has two parallel circuits connected between the line and earth or neutral, one circuit including a load impedance and switch in series and the other circuit including a voltmeter or equivalent indicator in series with a calibrated variable resistance. To measure the resistance of lines connected at 1 and 2 the switch 4 series with the load resistance 3 is first opened, and the line voltage read on the indicator 7 which is in series with the whole of the resistance 9. The switch 4 is then closed, and the meter reading falls because of the voltage drop in the loop due to the current taken by the load resistance. Since the load resistance is known the ratio of the two meter readings enables the loop resistance to be found. In practice, the meter is restored to its former reading by adjusting the variable resistance 9 by means of tap 10 and switch 12. The switches 4 and 12 may be mechanically coupled push switches, and the tap 10, which has a pointer 13 on a scale 14 calibrated in terms of loop resistance, is adjusted until there is no change in meter reading when the switches 4 and 12 are closed. One of the instrument terminals may be replaced by two terminals, one of which is selected by a further switch, so that both line/neutral and line/earth tests may be conducted quickly; there may be a cut-out in the circuit to avoid damage if the load resistor is left switched on (Fig. not shown). To measure impedance, the load resistance of figure 1 is replaced by a series combination of variable resistance and variable inductance with wipers mechanically coupled so that the combination has a constant impedance (Fig. 3 not shown). In use the wipers are adjusted for maximum deflection of the indicator 7, and the power factors of the loop and of the load will then be equal.
Patent GB-1447310-A (GB)
Title: Extraction and lifting apparatus for immersed bulk material
IPC: E02F3/08
Filed: 1974-05-24
Abstract: 1447310 Bucket ladder dredgers A WALZ 24 May 1974 [25 June 1973] 23260/74 Heading E1F A dredger comprises a bucket conveyor 6 mounted between a driving drum 8 attached to a vehicle, e.g. a ship 1, and a guide pulley 9 attached to a receiving unit 5, and a guide suspension 12 having guides 13, 13a and 13b for controlling the forward and return runs of the conveyor. The guides each have a guide roller 19 and four holding rollers 23 rotatably mounted between checks 15 so that they guide the conveyor strands 7 and bucket carriers 25, the latter carrying perforated buckets for impermeable buckets having pivotable lids. The receiving unit, which is connected to a body 11 has a plurality of pivoted drying fingers 48 and an edge belt 43, the latter having sensors for detecting impact with an obstruction. To dredge large areas the dredger may have a plurality of bucket conveyors arranged parallel to one another.
Patent GB-1430807-A (GB)
Title: Unsaturated polyester resins
IPC: G03F7/032
Filed: 1973-05-16
Abstract: 1430807 Photocurable polyester compositions PPG INDUSTRIES Inc 16 May 1973 [17 May 1972] 23277/73 Heading C3P Compositions which are curable by actinic light in the presence of oxygen or air comprise (a) an unsaturated polyester derived from an α,#-ethylenically unsaturated polycarboxylic acid, a polyhydric alcohol and optionally another acid component and (b) 10-80%, by weight of the composition, of a condensation product of acrylic or methacrylic acid and a polyglycidyl ether of a polyphenol or polyhydric alcohol. The compositions may additionally contain a photo-sensitizer and a vinyl monomer. In examples the polyester is derived from maleic anhydride, phthalic anhydride and propylene glycol; maleic anhydride, phthalic anhydride, 1,3-butanediol and trimethylolpropane diallyl ether; or fumaric acid, propylene glycol and diethylene glycol. Exemplified as component (b) is the bis-acrylate obtained from acrylic acid and the diglycidyl ether of bisphenol A; the exemplified vinyl monomer is styrene and/or vinyltoluene; and benzoin alkyl ethers are exemplified as photo-sensitizers. Methyl hydroquinone inhibitor is also included in some cases. The compositions are useful for providing protective films or coatings on substrates, e.g. panelling, furniture, paper, cement and cementasbestos products.
Patent GB-1486055-A (GB)
Title: Nematic liquid crystal compositions
IPC: C09K19/20
Filed: 1975-05-29
Abstract: 1486055 Liquid crystal compositions DAI NIPPON TORYO KK 29 May 1975 [28 Dec 1974] 23497/75 Heading C4X [Also in Division C2]  A nematic liquid crystal composition consists essentially of a mixture of at least one compound of the formula  where R 1  is an n-alkyl group with 4-8 carbon atoms, and not more than 30% by weight overall of at least one compound of the formula where R 2  is an n-alkyl group with 3-8 carbon atoms. The composition has positive dielectric anisotropy and is useful in electro-optic "twist" devices.
Patent GB-1223303-A (GB)
Title: Coated paper
Inventor: BOLD RONALD
IPC: D21H19/82
Filed: 1968-05-17
Abstract: 1,223,303. Coated paper. ROLLS-ROYCE Ltd. 15 Aug., 1969 [17 May, 1968], No. 23501/ 68. Heading B2E. A coated paper comprises a release paper e.g. a silicone impregnated paper having a coating of resin e.g. an epoxy resin overlaid with a coating of a protective powder e.g. talc, powdered graphite, powdered plaster or powdered clay. The coated paper may be produced by feeding silicone impregnated paper from drum 10 through oven 11 where an epoxy-novolac resin containing boron trifluoride is fed from hopper 12, the resin being spread by rollers 14, the resin coated paper being fed under hopper 16 containing talc, the talc coating being spread by brush 18 prior to rolling the paper. In alternative embodiments, the resin may be spread by a knife or applied by reverse roll coating.
Patent GB-1263386-A (GB)
Title: Improvements in or relating to a motor device whose magnetic circuit comprises a thin layer of hard magnetic material
Inventor: STCHERBATCHEFF GEORGES
IPC: H01F7/14
Filed: 1969-05-08
Abstract: 1,263,386. Electric motors. SOC. DE RECHERCHES EN MATIERE DE MICROMOTEUR ELECTRIQUES. 8 May, 1969 [10 May, 1968], No. 23568/69. Heading H2A. In an electric motor comprising a coil for producing a magnetic flux in a magnetic circuit having an air gap and at least one permanent magnet comprising a layer of hard magnetic material magnetized in the direction of its thickness and located in the air gap, the flux is substantially perpendicular to the layer and the thickness L of the layer is such that the ratio H c .L/Br.e is substantially below unity, where H c  and Br are respectively the coercive force and remanent flux density of the layer of magnetic material and e is the length of the air gap. A pendulum type motor, Fig. 3, comprises two layers 5, 6, of magnetic material mounted on a soft magnetic movable member 3 which is moved out of alignment with the stator poles by a spring (not shown) and returned to the aligned position on energization of the coil 2. Contacts (not shown) cause de-energization of the coil when the member 3 reaches the aligned position. In a homopolar motor, Fig. 5, a rotor comprising a radially magnetized cylindrical sleeve 24 is located between two toothed stator portions 19, 20 energized by a coil 21. Adjacent magnetized portions of the rotor have opposite polarity. In a modification, Figs. 6, 7 (not shown), a clock motor basically similar to the motor of Fig. 5 has a further set of stator poles, this set having twice the number of poles of sets (25a, 25b) corresponding to sets 19, 20, to ensure correct stepping movement. The stator poles are shaped so that each presents a sinusoidal flux density pattern to the rotor. A further modification, Fig. 11 (not shown), having two stator windings is suitable for two-phase operation, or alternatively, one of the coils may be a measuring coil, as described in Specification 1,233,884.
Patent GB-438077-A (GB)
Title: Improvements in, or relating to, motor cycles
IPC: B62K25/04
Filed: 1934-08-16
Abstract: 438,077. Spring frames for motorcycles. ARIEL MOTORS (J. S.) Ltd., and TURNER, E., Ariel Works, Grange Road, Selly Oak, Birmingham. Aug. 16, 1934, No. 23619. [Class 136 (iii)] One or more spring-cushioned weights are suspended from or mounted on the frame of a motor cycle rearwards of its centre of gravity, so that, because of their inertia, the weights lag behind the frame when it rises due to the machine meeting an obstruction, and thereby check, control or damp out the tendency of the frame (and the rear wheel) to pitch or " buck." In Fig. 1, the weight c is carried between the ends of a pair of beams a, pivoted on brackets b<1> fixed to or integral with the main frame b. The forward ends of the beams are positioned between compression springs e, e<1>. The brackets b<1> may be secured to any suitable part of the frame, and each beam a may carry a separate weight c. Adjustable friction dampers may be embodied in the journals of the beams, and tensioning adjustments for the springs e, e<1> may be provided. The weights may be adjustable along the beams. In a modification, the beams a are replaced by a pair of laminated springs anchored at their forward ends to the frame b, the rear ends of the springs carrying the weight, being connected to the frame through adjustable vibration dampers. In the modification shown in Fig. 6, the ends d<2> of the rear wheel spindle d<1> are enlarged and are located in a casing h disposed vertically on both sides of the machine frame. The spindle ends d<2> are located between pairs of cushioning springs h<1>, and the casing h is provided with inertia weights c at its lower ends. According to the Provisional Specification, the inertia weights and their balancing springs are contained in vertical casings attached to opposite sides of the main frame, each weight being free to float in its casing.
Patent GB-317638-A (GB)
Title: Improvements in brakes for bicycles and the like
IPC: B62L1/14
Filed: 1928-08-17
Abstract: 317,638. Currys (1927), Ltd., and Brinkworth, H. T. Aug. 17, 1928. Brake mechanism. - In brakes of the type having an arch of spring metal the lower ends of which are pivoted to bell crank levers which are pivoted to the fork blades or stays, the brake blocks are carried at each end of a bolt screwed into the upper end of the bell-crank lever 9, the bolt being locked by the lock-nut 15, and the two blocks being .secured respectively between the head 14 of the bolt and the bell-crank lever, and between the lock-nut 15 and a nut 18. The bell-crank lever is pivoted upon a stud 10 screwed at both ends, one end being screwed into the clip 12 mounted on the fork or stay 2, and the bell-crank lever being secured between a loose collar 13 on the stud and a nut.
Patent GB-487115-A (GB)
Title: Improvements in or relating to the production of casein
IPC: D01F4/00
Filed: 1937-08-30
Abstract: Casein in a form which, when dissolved in an alkali solution is suitable for the production of artificial threads, is made by precipitation from skimmed milk below 50 DEG  C. by addition of acid, and then heating the moist casein for from one to five hours, preferably at 50-100 DEG  C.  The heating may be effected by steam in a closed container, or while the casein is suspended in water; in the latter case the water being neutral, weakly acid or weakly alkaline, but is preferably at pH 4,6.  In an example, casein is precipitated by adding hydrochloric acid to milk skimmed at 36,5 DEG  C., the acid being added at 34,5 DEG  C. to produce pH 4,6.  The casein is filtered, washed, suspended in water at pH 4,6 and heated for two hours at 85 DEG  C.  It is dissolved in ammonia to a solution containing 17 per cent of casein and may be spun in a bath containing 20 per cent zinc sulphate, 1 per cent p  sulphuric acid, and 5 per cent of a neutralized condensation product of half a molecule of formaldehyde and one molecule of cresol sulphonic acid.
Patent GB-487637-A (GB)
Title: Improvements in or relating to hats for personal wear
IPC: A42B1/04
Filed: 1937-08-30
Abstract: 487,637. Hats. RICHARDSON, A., and ROBINSON, E. Aug. 30, 1937, No. 23704. [Class 63] A brimless hat comprises an inelastic head. band B adjustable in length by means of a buckle C or press studs, and an open crown formed by strips B<1>, B<2> of flexible sheet material secured to the head-band.
Patent GB-437908-A (GB)
Title: Improvements in watering cans and the like
IPC: A01G25/14
Filed: 1934-08-17
Abstract: 437,908. Watering-cans &c. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., 1, Balloon Street, Manchester, and WOODHEAD, A., 6, Stubbs Road, Penn Fields, Wolverhampton. Aug. 17, 1934, No. 23721. [Class 66] The spout c of a watering-can or the like is attached to the inclined face a of an intermediate portion b the part of which adjacent to the can body is substantially triangular in section. The part b may be integral with the body or separately formed and welded to the outer or inner surface. The spout is attached by being passed from the interior through an opening in the face a and is welded thereto.
Patent GB-252598-A (GB)
Title: Improvements in molds for the manufacturing of cellular cushion tires
IPC: B29C33/42
Filed: 1925-09-23
Abstract: 252,598. Beitel, W. J. Sept. 23, 1925. Moulding wheel tyres. - Relates to moulds for apertured cushion tyres of the type involving mould halves carrying opposed sets of pins adapted to form the apertures, and consists in providing pins of such a length as to leave a relatively small gap between the opposing ends of the pins when the moulds are fully closed, to ensure filling of the mould; further the ends of the pins may be drilled to form pockets and the mould walls may be grooved for the escape of air. As shown, the pins 8, riveted at 9 to the mould walls 1, 2, are adapted to leave a clearance of about one-thirty-second part of an inch when the mould is fully closed. The heads of the pins are drilled with holes 11 and may be countersunk at 12. Grooves 17 are provided in the mould walls. After moulding and vulcanizing, the webs formed between the pins are removed by tubular drills.
Patent GB-487640-A (GB)
Title: Improvements relating to display devices
IPC: A47F3/14
Filed: 1937-08-31
Abstract: 487,640. Displaying fruit &c. SMITH, S. W., and NORMAN, J. E. Aug. 31, 1937, No. 23741. [Class 3 (ii)] A portable display device for stacking fruit or other commodities in pyramid formation comprises a plurality of osiers 11 which are secured together by bindings 12, 13, 14. An integral or detachable upstanding flange or ledge may be provided at the lower end of the osiers, and a ring may be formed at their upper end to facilitate handling or suspension of the device.
Patent GB-421666-A (GB)
Title: Improvements in and relating to method of and means for cutting screw threads
IPC: B23G5/06
Filed: 1933-08-26
Abstract: 421,666. Screw-cutting taps and dies. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Greenfield Tap & Die Corporation; Sanderson Street, Greenfield, Massachusetts, U.S.A.) Aug. 26, 1933, No. 23792. [Class 83 (iii)] A screw-cutting tap or die having a number of cutting teeth 10 disposed on lands k ... n with equal clearances C on the same side of all the teeth of any one land k, Fig. 2, and the same clearance C on the opposite side of all the teeth of the succeeding land l, has full cutting teeth which are identical in cross section and spacing and which have one flat end cutting edge, one side cutting edge and one clearance side. Thus successive teeth operating along a helical' line a a, engage the work W on opposite sides of the thread groove. Square or acme threads may be cut by similar tools. The clearance C may be provided during the original formation of the teeth or by a supplementary grinding or relieving operation.
Patent GB-488141-A (GB)
Title: Improvements in devices for rectifying the fermentation vapours in the manufacture of alcohol
IPC: B01D5/00
Filed: 1937-08-31
Abstract: <PICT:0488141/III/1> <PICT:0488141/III/2> <PICT:0488141/III/3> <PICT:0488141/III/4> <PICT:0488141/III/5> Apparatus for rectifying the fermentation vapours in the manufacture of alcohol comprises a boiler A, a vaporizing chamber A1, a rectifying vessel B, a preheater C, and a dephlegmator C1, the fermented mash being conveyed by pipe 14 to coils 13 in the preheater, from which it passes by pipe 15 to coils 8 in the vaporizer A1 and then to the boiler A.  The ascending vapours of water and alcohol pass through a bell 30 into A1 where part settles on partitions 12, while the alcoholic vapours pass up and heat the mash in the coils 8.  The vapours then ascend into C, where they are condensed by the cooling coils 16 and flow into a collector 18, from which they pass on to the upper partition 121 in B and then through pipe 11 and vessel 10 onto a disc 9 in A1, and then into the boiler.  The residue in the boiler passes through an overflow pipe 5 and siphon 6 to a collector.  An inspection glass 7 is provided in the boiler.
Patent GB-748662-A (GB)
Title: Improvements in or relating to adhesive repair patches
IPC: B29C73/10
Filed: 1953-08-28
Abstract: 748,662. Puncture-repair patches. BOYCE, R. D. Aug. 13, 1954 [Aug. 28, 1953], No. 23860/53. Class 144 (1). [Also in Group VIII] An adhesive repair patch 10, e.g. for mending punctures in pneumatic tyres, has its front (operative) face coated with a first adhesive layer 11 and protected by a first layer of sheet material 12 and its rear face protected by a second adhering layer of sheet material 13 having second and third adhesive layers 15, 14 disposed side-by-side thereon, the bond provided by the second adhesive 15 being more tenacious, and the bond provided by the third adhesive 14 being less tenacious, than the bond provided by the first adhesive 11. The patch 10 may be of rubber while the protective layers 12, 13, which extend beyond the margin of the patch are of metal foil and paper. The adhesives 14, 15 may be identified, e.g. by printing or by different colours. In use, the paper and patch are first peeled away from the metal foil as shown, starting at the " strong " adhesive end, and then applied to the surface of an article where, by means of the adhesive 11, the patch becomes securely affixed, the bond being more tenacious than that between the " strong adhesive 15 and the patch. The paper layer 13, together with its adhesive layers, is then peeled away from the patch starting at the " weak " adhesive end. A number of the patches may be mounted at intervals between strips of foil and paper. The strong and weak adhesives may be carried on two separate strips lying side-by-side.
Patent GB-386027-A (GB)
Title: Improved structural building material
IPC: E04C2/24
Filed: 1931-08-25
Abstract: 386,027. Composite sheet materials. MERCHANT TRADING CO., Ltd., 52, Bishopsgate, London, and ROBERTS, E. W., Gammons Farm, near Watford, Hertfordshire. Aug. 25, 1931, No. 23888. [Class 140.] A heat- and soundinsulating structural building material, suitable for panelling or tiles, is made by applying a sheet 2 of plywood to one surface of an artificial lumber or fibreboard base 1 by means of waterproof adhesive, and uniting the two elements by pressure. The other surfaces of the base may be protected by a coating 3 of a cellulose or other waterproof varnish. The tiles may be coloured by spraying or enamelling. Specification 285,614, [Class 140, Waterproof &c. fabrics], is referred to.